Commit | Line | Data |
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252b5132 | 1 | /* Main program of GNU linker. |
b3adc24a | 2 | Copyright (C) 1991-2020 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Steve Chamberlain steve@cygnus.com |
4 | ||
f96b4a7b | 5 | This file is part of the GNU Binutils. |
252b5132 | 6 | |
f96b4a7b | 7 | This program is free software; you can redistribute it and/or modify |
2fa9fc65 | 8 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
252b5132 | 11 | |
f96b4a7b | 12 | This program is distributed in the hope that it will be useful, |
2fa9fc65 NC |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
2fa9fc65 | 17 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
3882b010 | 24 | #include "safe-ctype.h" |
252b5132 RH |
25 | #include "libiberty.h" |
26 | #include "progress.h" | |
27 | #include "bfdlink.h" | |
1ff6de03 | 28 | #include "ctf-api.h" |
5af11cab | 29 | #include "filenames.h" |
cae64165 | 30 | #include "elf/common.h" |
252b5132 RH |
31 | |
32 | #include "ld.h" | |
33 | #include "ldmain.h" | |
34 | #include "ldmisc.h" | |
35 | #include "ldwrite.h" | |
252b5132 RH |
36 | #include "ldexp.h" |
37 | #include "ldlang.h" | |
df2a7313 | 38 | #include <ldgram.h> |
252b5132 RH |
39 | #include "ldlex.h" |
40 | #include "ldfile.h" | |
b71e2778 | 41 | #include "ldemul.h" |
252b5132 | 42 | #include "ldctor.h" |
0381901e | 43 | #if BFD_SUPPORTS_PLUGINS |
5d3236ee DK |
44 | #include "plugin.h" |
45 | #include "plugin-api.h" | |
0381901e | 46 | #endif /* BFD_SUPPORTS_PLUGINS */ |
252b5132 | 47 | |
0125cdf2 | 48 | /* Somewhere above, sys/stat.h got included. */ |
252b5132 RH |
49 | #if !defined(S_ISDIR) && defined(S_IFDIR) |
50 | #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) | |
51 | #endif | |
52 | ||
53 | #include <string.h> | |
54 | ||
9c8ebd6a DJ |
55 | #ifndef TARGET_SYSTEM_ROOT |
56 | #define TARGET_SYSTEM_ROOT "" | |
57 | #endif | |
58 | ||
252b5132 RH |
59 | /* EXPORTS */ |
60 | ||
53d25da6 AM |
61 | FILE *saved_script_handle = NULL; |
62 | FILE *previous_script_handle = NULL; | |
63 | bfd_boolean force_make_executable = FALSE; | |
64 | ||
252b5132 RH |
65 | char *default_target; |
66 | const char *output_filename = "a.out"; | |
67 | ||
68 | /* Name this program was invoked by. */ | |
69 | char *program_name; | |
70 | ||
9c8ebd6a | 71 | /* The prefix for system library directories. */ |
e2243057 | 72 | const char *ld_sysroot; |
9c8ebd6a | 73 | |
3fe38064 | 74 | /* The canonical representation of ld_sysroot. */ |
0aa7f586 | 75 | char *ld_canon_sysroot; |
3fe38064 NC |
76 | int ld_canon_sysroot_len; |
77 | ||
e8044f35 | 78 | /* Set by -G argument, for targets like MIPS ELF. */ |
252b5132 RH |
79 | int g_switch_value = 8; |
80 | ||
81 | /* Nonzero means print names of input files as processed. */ | |
727a29ba | 82 | unsigned int trace_files; |
252b5132 | 83 | |
cd6f1cf3 NC |
84 | /* Nonzero means report actions taken by the linker, and describe the linker script in use. */ |
85 | bfd_boolean verbose; | |
252b5132 RH |
86 | |
87 | /* Nonzero means version number was printed, so exit successfully | |
88 | instead of complaining if no input files are given. */ | |
b34976b6 | 89 | bfd_boolean version_printed; |
252b5132 | 90 | |
b34976b6 AM |
91 | /* TRUE if we should demangle symbol names. */ |
92 | bfd_boolean demangling; | |
252b5132 RH |
93 | |
94 | args_type command_line; | |
95 | ||
96 | ld_config_type config; | |
97 | ||
bcaa7b3e L |
98 | sort_type sort_section; |
99 | ||
e2243057 RS |
100 | static const char *get_sysroot |
101 | (int, char **); | |
0125cdf2 | 102 | static char *get_emulation |
1579bae1 | 103 | (int, char **); |
0125cdf2 | 104 | static bfd_boolean add_archive_element |
5d3236ee | 105 | (struct bfd_link_info *, bfd *, const char *, bfd **); |
1a72702b | 106 | static void multiple_definition |
24f58f47 | 107 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
1579bae1 | 108 | bfd *, asection *, bfd_vma); |
1a72702b | 109 | static void multiple_common |
24f58f47 AM |
110 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
111 | bfd *, enum bfd_link_hash_type, bfd_vma); | |
1a72702b | 112 | static void add_to_set |
1579bae1 AM |
113 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
114 | bfd_reloc_code_real_type, bfd *, asection *, bfd_vma); | |
1a72702b | 115 | static void constructor_callback |
1579bae1 AM |
116 | (struct bfd_link_info *, bfd_boolean, const char *, bfd *, |
117 | asection *, bfd_vma); | |
1a72702b | 118 | static void warning_callback |
1579bae1 AM |
119 | (struct bfd_link_info *, const char *, const char *, bfd *, |
120 | asection *, bfd_vma); | |
0125cdf2 | 121 | static void warning_find_reloc |
1579bae1 | 122 | (bfd *, asection *, void *); |
1a72702b | 123 | static void undefined_symbol |
1579bae1 AM |
124 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma, |
125 | bfd_boolean); | |
1a72702b | 126 | static void reloc_overflow |
dfeffb9f L |
127 | (struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, |
128 | const char *, bfd_vma, bfd *, asection *, bfd_vma); | |
1a72702b | 129 | static void reloc_dangerous |
1579bae1 | 130 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
1a72702b | 131 | static void unattached_reloc |
1579bae1 | 132 | (struct bfd_link_info *, const char *, bfd *, asection *, bfd_vma); |
0125cdf2 | 133 | static bfd_boolean notice |
35ed3f94 | 134 | (struct bfd_link_info *, struct bfd_link_hash_entry *, |
46135103 | 135 | struct bfd_link_hash_entry *, bfd *, asection *, bfd_vma, flagword); |
0125cdf2 NC |
136 | |
137 | static struct bfd_link_callbacks link_callbacks = | |
138 | { | |
252b5132 RH |
139 | add_archive_element, |
140 | multiple_definition, | |
141 | multiple_common, | |
142 | add_to_set, | |
143 | constructor_callback, | |
144 | warning_callback, | |
145 | undefined_symbol, | |
146 | reloc_overflow, | |
147 | reloc_dangerous, | |
148 | unattached_reloc, | |
e1fffbe6 | 149 | notice, |
2889e75b | 150 | einfo, |
49fa1e15 AM |
151 | info_msg, |
152 | minfo, | |
1ff6de03 NA |
153 | ldlang_override_segment_assignment, |
154 | ldlang_ctf_apply_strsym, | |
155 | ldlang_write_ctf_late | |
252b5132 RH |
156 | }; |
157 | ||
3b66a141 | 158 | static bfd_assert_handler_type default_bfd_assert_handler; |
4519d071 | 159 | static bfd_error_handler_type default_bfd_error_handler; |
3b66a141 | 160 | |
252b5132 RH |
161 | struct bfd_link_info link_info; |
162 | \f | |
f37b21b4 RM |
163 | struct dependency_file |
164 | { | |
165 | struct dependency_file *next; | |
166 | char *name; | |
167 | }; | |
168 | ||
169 | static struct dependency_file *dependency_files, *dependency_files_tail; | |
170 | ||
171 | void | |
172 | track_dependency_files (const char *filename) | |
173 | { | |
174 | struct dependency_file *dep | |
175 | = (struct dependency_file *) xmalloc (sizeof (*dep)); | |
176 | dep->name = xstrdup (filename); | |
177 | dep->next = NULL; | |
178 | if (dependency_files == NULL) | |
179 | dependency_files = dep; | |
180 | else | |
181 | dependency_files_tail->next = dep; | |
182 | dependency_files_tail = dep; | |
183 | } | |
184 | ||
185 | static void | |
186 | write_dependency_file (void) | |
187 | { | |
188 | FILE *out; | |
189 | struct dependency_file *dep; | |
190 | ||
191 | out = fopen (config.dependency_file, FOPEN_WT); | |
192 | if (out == NULL) | |
193 | { | |
194 | einfo (_("%F%P: cannot open dependency file %s: %E\n"), | |
195 | config.dependency_file); | |
196 | } | |
197 | ||
198 | fprintf (out, "%s:", output_filename); | |
199 | ||
200 | for (dep = dependency_files; dep != NULL; dep = dep->next) | |
201 | fprintf (out, " \\\n %s", dep->name); | |
202 | ||
203 | fprintf (out, "\n"); | |
204 | for (dep = dependency_files; dep != NULL; dep = dep->next) | |
205 | fprintf (out, "\n%s:\n", dep->name); | |
206 | ||
207 | fclose (out); | |
208 | } | |
209 | \f | |
252b5132 | 210 | static void |
498cd2a0 | 211 | ld_cleanup (void) |
252b5132 | 212 | { |
498cd2a0 | 213 | bfd_cache_close_all (); |
0381901e | 214 | #if BFD_SUPPORTS_PLUGINS |
498cd2a0 AM |
215 | plugin_call_cleanup (); |
216 | #endif | |
217 | if (output_filename && delete_output_file_on_failure) | |
218 | unlink_if_ordinary (output_filename); | |
252b5132 RH |
219 | } |
220 | ||
4519d071 | 221 | /* Hook to notice BFD assertions. */ |
3b66a141 HPN |
222 | |
223 | static void | |
224 | ld_bfd_assert_handler (const char *fmt, const char *bfdver, | |
225 | const char *file, int line) | |
226 | { | |
3b66a141 | 227 | config.make_executable = FALSE; |
4519d071 AM |
228 | (*default_bfd_assert_handler) (fmt, bfdver, file, line); |
229 | } | |
230 | ||
231 | /* Hook the bfd error/warning handler for --fatal-warnings. */ | |
232 | ||
233 | static void | |
234 | ld_bfd_error_handler (const char *fmt, va_list ap) | |
235 | { | |
236 | if (config.fatal_warnings) | |
237 | config.make_executable = FALSE; | |
238 | (*default_bfd_error_handler) (fmt, ap); | |
3b66a141 HPN |
239 | } |
240 | ||
252b5132 | 241 | int |
1579bae1 | 242 | main (int argc, char **argv) |
252b5132 RH |
243 | { |
244 | char *emulation; | |
245 | long start_time = get_run_time (); | |
246 | ||
247 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) | |
248 | setlocale (LC_MESSAGES, ""); | |
3882b010 L |
249 | #endif |
250 | #if defined (HAVE_SETLOCALE) | |
251 | setlocale (LC_CTYPE, ""); | |
252b5132 RH |
252 | #endif |
253 | bindtextdomain (PACKAGE, LOCALEDIR); | |
254 | textdomain (PACKAGE); | |
255 | ||
256 | program_name = argv[0]; | |
257 | xmalloc_set_program_name (program_name); | |
258 | ||
259 | START_PROGRESS (program_name, 0); | |
260 | ||
869b9d07 MM |
261 | expandargv (&argc, &argv); |
262 | ||
bf2dd8d7 AM |
263 | if (bfd_init () != BFD_INIT_MAGIC) |
264 | einfo (_("%F%P: fatal error: libbfd ABI mismatch\n")); | |
252b5132 RH |
265 | |
266 | bfd_set_error_program_name (program_name); | |
267 | ||
3b66a141 HPN |
268 | /* We want to notice and fail on those nasty BFD assertions which are |
269 | likely to signal incorrect output being generated but otherwise may | |
270 | leave no trace. */ | |
271 | default_bfd_assert_handler = bfd_set_assert_handler (ld_bfd_assert_handler); | |
272 | ||
4519d071 AM |
273 | /* Also hook the bfd error/warning handler for --fatal-warnings. */ |
274 | default_bfd_error_handler = bfd_set_error_handler (ld_bfd_error_handler); | |
275 | ||
498cd2a0 | 276 | xatexit (ld_cleanup); |
252b5132 | 277 | |
e2243057 RS |
278 | /* Set up the sysroot directory. */ |
279 | ld_sysroot = get_sysroot (argc, argv); | |
280 | if (*ld_sysroot) | |
3074964f | 281 | ld_canon_sysroot = lrealpath (ld_sysroot); |
3fe38064 | 282 | if (ld_canon_sysroot) |
889be5db DR |
283 | { |
284 | ld_canon_sysroot_len = strlen (ld_canon_sysroot); | |
285 | ||
286 | /* is_sysrooted_pathname() relies on no trailing dirsep. */ | |
287 | if (ld_canon_sysroot_len > 0 | |
288 | && IS_DIR_SEPARATOR (ld_canon_sysroot [ld_canon_sysroot_len - 1])) | |
f37b21b4 | 289 | ld_canon_sysroot [--ld_canon_sysroot_len] = '\0'; |
889be5db | 290 | } |
3fe38064 NC |
291 | else |
292 | ld_canon_sysroot_len = -1; | |
293 | ||
252b5132 RH |
294 | /* Set the default BFD target based on the configured target. Doing |
295 | this permits the linker to be configured for a particular target, | |
296 | and linked against a shared BFD library which was configured for | |
297 | a different target. The macro TARGET is defined by Makefile. */ | |
0aa7f586 | 298 | if (!bfd_set_default_target (TARGET)) |
252b5132 RH |
299 | { |
300 | einfo (_("%X%P: can't set BFD default target to `%s': %E\n"), TARGET); | |
301 | xexit (1); | |
302 | } | |
303 | ||
b47c4208 AM |
304 | #if YYDEBUG |
305 | { | |
306 | extern int yydebug; | |
307 | yydebug = 1; | |
308 | } | |
309 | #endif | |
310 | ||
b34976b6 | 311 | config.build_constructors = TRUE; |
c76308d2 | 312 | config.rpath_separator = ':'; |
a854a4a7 AM |
313 | config.split_by_reloc = (unsigned) -1; |
314 | config.split_by_file = (bfd_size_type) -1; | |
3b95049e AM |
315 | config.make_executable = TRUE; |
316 | config.magic_demand_paged = TRUE; | |
317 | config.text_read_only = TRUE; | |
035801ce | 318 | config.print_map_discarded = TRUE; |
4f9d22a0 | 319 | link_info.disable_target_specific_optimizations = -1; |
3b95049e | 320 | |
b34976b6 | 321 | command_line.warn_mismatch = TRUE; |
fe7929ce | 322 | command_line.warn_search_mismatch = TRUE; |
02b0b1aa | 323 | command_line.check_section_addresses = -1; |
bcaa7b3e | 324 | |
252b5132 RH |
325 | /* We initialize DEMANGLING based on the environment variable |
326 | COLLECT_NO_DEMANGLE. The gcc collect2 program will demangle the | |
327 | output of the linker, unless COLLECT_NO_DEMANGLE is set in the | |
328 | environment. Acting the same way here lets us provide the same | |
329 | interface by default. */ | |
330 | demangling = getenv ("COLLECT_NO_DEMANGLE") == NULL; | |
331 | ||
b34976b6 | 332 | link_info.allow_undefined_version = TRUE; |
b5067602 | 333 | link_info.keep_memory = TRUE; |
b5067602 | 334 | link_info.combreloc = TRUE; |
d5cd3933 | 335 | link_info.strip_discarded = TRUE; |
3f0a5f17 | 336 | link_info.prohibit_multiple_definition_absolute = FALSE; |
b32632c4 | 337 | link_info.textrel_check = DEFAULT_LD_TEXTREL_CHECK; |
2760f24c RG |
338 | link_info.emit_hash = DEFAULT_EMIT_SYSV_HASH; |
339 | link_info.emit_gnu_hash = DEFAULT_EMIT_GNU_HASH; | |
a9a4c53e AM |
340 | link_info.callbacks = &link_callbacks; |
341 | link_info.input_bfds_tail = &link_info.input_bfds; | |
3dbf70a2 MM |
342 | /* SVR4 linkers seem to set DT_INIT and DT_FINI based on magic _init |
343 | and _fini symbols. We are compatible. */ | |
344 | link_info.init_function = "_init"; | |
345 | link_info.fini_function = "_fini"; | |
a9a4c53e | 346 | link_info.relax_pass = 1; |
889c2a67 | 347 | link_info.extern_protected_data = -1; |
aec6b87e | 348 | link_info.dynamic_undefined_weak = -1; |
e0076ab3 | 349 | link_info.pei386_auto_import = -1; |
db6751f2 | 350 | link_info.spare_dynamic_tags = 5; |
967928e9 | 351 | link_info.path_separator = ':'; |
6c3bc0f8 NC |
352 | #ifdef DEFAULT_FLAG_COMPRESS_DEBUG |
353 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
354 | #endif | |
6734f10a | 355 | #ifdef DEFAULT_NEW_DTAGS |
91001320 | 356 | link_info.new_dtags = DEFAULT_NEW_DTAGS; |
6734f10a | 357 | #endif |
cae64165 | 358 | link_info.start_stop_visibility = STV_PROTECTED; |
24718e3b | 359 | |
252b5132 | 360 | ldfile_add_arch (""); |
252b5132 RH |
361 | emulation = get_emulation (argc, argv); |
362 | ldemul_choose_mode (emulation); | |
742aeb63 | 363 | default_target = ldemul_choose_target (argc, argv); |
252b5132 | 364 | lang_init (); |
18d6a79d | 365 | ldexp_init (); |
252b5132 | 366 | ldemul_before_parse (); |
b34976b6 | 367 | lang_has_input_file = FALSE; |
252b5132 RH |
368 | parse_args (argc, argv); |
369 | ||
2d643429 NC |
370 | if (config.hash_table_size != 0) |
371 | bfd_hash_set_default_size (config.hash_table_size); | |
372 | ||
0381901e | 373 | #if BFD_SUPPORTS_PLUGINS |
9bbc1a67 | 374 | /* Now all the plugin arguments have been gathered, we can load them. */ |
d82184d7 | 375 | plugin_load_plugins (); |
0381901e | 376 | #endif /* BFD_SUPPORTS_PLUGINS */ |
36af4a4e | 377 | |
9bbc1a67 | 378 | ldemul_set_symbols (); |
252b5132 | 379 | |
14be8564 L |
380 | /* If we have not already opened and parsed a linker script, |
381 | try the default script from command line first. */ | |
382 | if (saved_script_handle == NULL | |
383 | && command_line.default_script != NULL) | |
384 | { | |
6ec6968b | 385 | ldfile_open_script_file (command_line.default_script); |
14be8564 L |
386 | parser_input = input_script; |
387 | yyparse (); | |
388 | } | |
389 | ||
b9a8de1e NC |
390 | /* If we have not already opened and parsed a linker script |
391 | read the emulation's appropriate default script. */ | |
b90e1c6f | 392 | if (saved_script_handle == NULL) |
252b5132 | 393 | { |
252b5132 | 394 | int isfile; |
b7a26f91 | 395 | char *s = ldemul_get_script (&isfile); |
252b5132 RH |
396 | |
397 | if (isfile) | |
7d24f02c | 398 | ldfile_open_default_command_file (s); |
252b5132 | 399 | else |
b7a26f91 | 400 | { |
252b5132 | 401 | lex_string = s; |
dab69f68 | 402 | lex_redirect (s, _("built in linker script"), 1); |
252b5132 RH |
403 | } |
404 | parser_input = input_script; | |
405 | yyparse (); | |
406 | lex_string = NULL; | |
407 | } | |
408 | ||
cd6f1cf3 | 409 | if (verbose) |
b9a8de1e | 410 | { |
9cb61eab AM |
411 | if (saved_script_handle) |
412 | info_msg (_("using external linker script:")); | |
413 | else | |
414 | info_msg (_("using internal linker script:")); | |
415 | info_msg ("\n==================================================\n"); | |
b9a8de1e NC |
416 | |
417 | if (saved_script_handle) | |
418 | { | |
74699268 | 419 | static const int ld_bufsz = 8193; |
b9a8de1e | 420 | size_t n; |
1e9cc1c2 | 421 | char *buf = (char *) xmalloc (ld_bufsz); |
b9a8de1e NC |
422 | |
423 | rewind (saved_script_handle); | |
74699268 | 424 | while ((n = fread (buf, 1, ld_bufsz - 1, saved_script_handle)) > 0) |
b9a8de1e | 425 | { |
b7a26f91 | 426 | buf[n] = 0; |
f5ac6ab3 | 427 | info_msg ("%s", buf); |
b9a8de1e NC |
428 | } |
429 | rewind (saved_script_handle); | |
430 | free (buf); | |
431 | } | |
432 | else | |
433 | { | |
434 | int isfile; | |
435 | ||
b7a26f91 | 436 | info_msg (ldemul_get_script (&isfile)); |
b9a8de1e | 437 | } |
b7a26f91 | 438 | |
b9a8de1e NC |
439 | info_msg ("\n==================================================\n"); |
440 | } | |
441 | ||
7bdf4127 AB |
442 | if (command_line.force_group_allocation |
443 | || !bfd_link_relocatable (&link_info)) | |
444 | link_info.resolve_section_groups = TRUE; | |
445 | else | |
446 | link_info.resolve_section_groups = FALSE; | |
447 | ||
30824704 RM |
448 | if (command_line.print_output_format) |
449 | info_msg ("%s\n", lang_get_output_target ()); | |
450 | ||
252b5132 RH |
451 | lang_final (); |
452 | ||
61e2488c JT |
453 | /* If the only command line argument has been -v or --version or --verbose |
454 | then ignore any input files provided by linker scripts and exit now. | |
455 | We do not want to create an output file when the linker is just invoked | |
456 | to provide version information. */ | |
457 | if (argc == 2 && version_printed) | |
458 | xexit (0); | |
459 | ||
a4819f54 | 460 | if (link_info.inhibit_common_definition && !bfd_link_dll (&link_info)) |
df5f2391 | 461 | einfo (_("%F%P: --no-define-common may not be used without -shared\n")); |
a4819f54 | 462 | |
b34976b6 | 463 | if (!lang_has_input_file) |
252b5132 | 464 | { |
30824704 | 465 | if (version_printed || command_line.print_output_format) |
252b5132 | 466 | xexit (0); |
df5f2391 | 467 | einfo (_("%F%P: no input files\n")); |
252b5132 RH |
468 | } |
469 | ||
5c87f94b | 470 | if (verbose) |
0125cdf2 | 471 | info_msg (_("%P: mode %s\n"), emulation); |
252b5132 RH |
472 | |
473 | ldemul_after_parse (); | |
474 | ||
252b5132 RH |
475 | if (config.map_filename) |
476 | { | |
477 | if (strcmp (config.map_filename, "-") == 0) | |
478 | { | |
479 | config.map_file = stdout; | |
480 | } | |
481 | else | |
482 | { | |
483 | config.map_file = fopen (config.map_filename, FOPEN_WT); | |
484 | if (config.map_file == (FILE *) NULL) | |
485 | { | |
486 | bfd_set_error (bfd_error_system_call); | |
df5f2391 | 487 | einfo (_("%F%P: cannot open map file %s: %E\n"), |
252b5132 RH |
488 | config.map_filename); |
489 | } | |
490 | } | |
d2ef37eb | 491 | link_info.has_map_file = TRUE; |
252b5132 RH |
492 | } |
493 | ||
252b5132 RH |
494 | lang_process (); |
495 | ||
496 | /* Print error messages for any missing symbols, for any warning | |
6d5e62f8 | 497 | symbols, and possibly multiple definitions. */ |
0e1862bb | 498 | if (bfd_link_relocatable (&link_info)) |
f13a99db | 499 | link_info.output_bfd->flags &= ~EXEC_P; |
252b5132 | 500 | else |
f13a99db | 501 | link_info.output_bfd->flags |= EXEC_P; |
252b5132 | 502 | |
0ce398f1 L |
503 | if ((link_info.compress_debug & COMPRESS_DEBUG)) |
504 | { | |
505 | link_info.output_bfd->flags |= BFD_COMPRESS; | |
506 | if (link_info.compress_debug == COMPRESS_DEBUG_GABI_ZLIB) | |
507 | link_info.output_bfd->flags |= BFD_COMPRESS_GABI; | |
508 | } | |
509 | ||
252b5132 RH |
510 | ldwrite (); |
511 | ||
512 | if (config.map_file != NULL) | |
513 | lang_map (); | |
514 | if (command_line.cref) | |
515 | output_cref (config.map_file != NULL ? config.map_file : stdout); | |
516 | if (nocrossref_list != NULL) | |
517 | check_nocrossrefs (); | |
3604cb1f TG |
518 | if (command_line.print_memory_usage) |
519 | lang_print_memory_usage (); | |
edf84efc NC |
520 | #if 0 |
521 | { | |
0aa7f586 | 522 | struct bfd_link_hash_entry *h; |
252b5132 | 523 | |
edf84efc NC |
524 | h = bfd_link_hash_lookup (link_info.hash, "__image_base__", 0,0,1); |
525 | fprintf (stderr, "lookup = %p val %lx\n", h, h ? h->u.def.value : 1); | |
526 | } | |
527 | #endif | |
18d6a79d | 528 | ldexp_finish (); |
750877ba L |
529 | lang_finish (); |
530 | ||
f37b21b4 RM |
531 | if (config.dependency_file != NULL) |
532 | write_dependency_file (); | |
533 | ||
1049f94e | 534 | /* Even if we're producing relocatable output, some non-fatal errors should |
252b5132 | 535 | be reported in the exit status. (What non-fatal errors, if any, do we |
1049f94e | 536 | want to ignore for relocatable output?) */ |
b34976b6 | 537 | if (!config.make_executable && !force_make_executable) |
252b5132 | 538 | { |
5c87f94b | 539 | if (verbose) |
0125cdf2 NC |
540 | einfo (_("%P: link errors found, deleting executable `%s'\n"), |
541 | output_filename); | |
252b5132 | 542 | |
4309cbf2 | 543 | /* The file will be removed by ld_cleanup. */ |
252b5132 RH |
544 | xexit (1); |
545 | } | |
546 | else | |
547 | { | |
0aa7f586 | 548 | if (!bfd_close (link_info.output_bfd)) |
df5f2391 | 549 | einfo (_("%F%P: %pB: final close failed: %E\n"), link_info.output_bfd); |
252b5132 RH |
550 | |
551 | /* If the --force-exe-suffix is enabled, and we're making an | |
6d5e62f8 KH |
552 | executable file and it doesn't end in .exe, copy it to one |
553 | which does. */ | |
0e1862bb L |
554 | if (!bfd_link_relocatable (&link_info) |
555 | && command_line.force_exe_suffix) | |
252b5132 RH |
556 | { |
557 | int len = strlen (output_filename); | |
0125cdf2 | 558 | |
6d5e62f8 | 559 | if (len < 4 |
252b5132 RH |
560 | || (strcasecmp (output_filename + len - 4, ".exe") != 0 |
561 | && strcasecmp (output_filename + len - 4, ".dll") != 0)) | |
562 | { | |
563 | FILE *src; | |
564 | FILE *dst; | |
565 | const int bsize = 4096; | |
1e9cc1c2 | 566 | char *buf = (char *) xmalloc (bsize); |
252b5132 | 567 | int l; |
1e9cc1c2 | 568 | char *dst_name = (char *) xmalloc (len + 5); |
0125cdf2 | 569 | |
252b5132 RH |
570 | strcpy (dst_name, output_filename); |
571 | strcat (dst_name, ".exe"); | |
572 | src = fopen (output_filename, FOPEN_RB); | |
573 | dst = fopen (dst_name, FOPEN_WB); | |
574 | ||
575 | if (!src) | |
df5f2391 | 576 | einfo (_("%F%P: unable to open for source of copy `%s'\n"), |
1579bae1 | 577 | output_filename); |
252b5132 | 578 | if (!dst) |
df5f2391 | 579 | einfo (_("%F%P: unable to open for destination of copy `%s'\n"), |
1579bae1 | 580 | dst_name); |
252b5132 RH |
581 | while ((l = fread (buf, 1, bsize, src)) > 0) |
582 | { | |
583 | int done = fwrite (buf, 1, l, dst); | |
0125cdf2 | 584 | |
252b5132 | 585 | if (done != l) |
df5f2391 | 586 | einfo (_("%P: error writing file `%s'\n"), dst_name); |
252b5132 | 587 | } |
0125cdf2 | 588 | |
252b5132 RH |
589 | fclose (src); |
590 | if (fclose (dst) == EOF) | |
df5f2391 | 591 | einfo (_("%P: error closing file `%s'\n"), dst_name); |
252b5132 RH |
592 | free (dst_name); |
593 | free (buf); | |
594 | } | |
595 | } | |
596 | } | |
597 | ||
598 | END_PROGRESS (program_name); | |
599 | ||
600 | if (config.stats) | |
601 | { | |
252b5132 RH |
602 | long run_time = get_run_time () - start_time; |
603 | ||
e922bcab | 604 | fflush (stdout); |
252b5132 RH |
605 | fprintf (stderr, _("%s: total time in link: %ld.%06ld\n"), |
606 | program_name, run_time / 1000000, run_time % 1000000); | |
e922bcab | 607 | fflush (stderr); |
252b5132 RH |
608 | } |
609 | ||
4309cbf2 | 610 | /* Prevent ld_cleanup from doing anything, after a successful link. */ |
252b5132 RH |
611 | output_filename = NULL; |
612 | ||
613 | xexit (0); | |
614 | return 0; | |
615 | } | |
616 | ||
e2243057 RS |
617 | /* If the configured sysroot is relocatable, try relocating it based on |
618 | default prefix FROM. Return the relocated directory if it exists, | |
619 | otherwise return null. */ | |
620 | ||
621 | static char * | |
622 | get_relative_sysroot (const char *from ATTRIBUTE_UNUSED) | |
623 | { | |
624 | #ifdef TARGET_SYSTEM_ROOT_RELOCATABLE | |
625 | char *path; | |
626 | struct stat s; | |
627 | ||
628 | path = make_relative_prefix (program_name, from, TARGET_SYSTEM_ROOT); | |
629 | if (path) | |
630 | { | |
631 | if (stat (path, &s) == 0 && S_ISDIR (s.st_mode)) | |
632 | return path; | |
633 | free (path); | |
634 | } | |
635 | #endif | |
636 | return 0; | |
637 | } | |
638 | ||
639 | /* Return the sysroot directory. Return "" if no sysroot is being used. */ | |
640 | ||
641 | static const char * | |
642 | get_sysroot (int argc, char **argv) | |
643 | { | |
644 | int i; | |
55d5520a | 645 | const char *path = NULL; |
e2243057 RS |
646 | |
647 | for (i = 1; i < argc; i++) | |
0112cd26 | 648 | if (CONST_STRNEQ (argv[i], "--sysroot=")) |
55d5520a | 649 | path = argv[i] + strlen ("--sysroot="); |
e2243057 | 650 | |
55d5520a AM |
651 | if (!path) |
652 | path = get_relative_sysroot (BINDIR); | |
e2243057 | 653 | |
55d5520a AM |
654 | if (!path) |
655 | path = get_relative_sysroot (TOOLBINDIR); | |
656 | ||
657 | if (!path) | |
658 | path = TARGET_SYSTEM_ROOT; | |
659 | ||
660 | if (IS_DIR_SEPARATOR (*path) && path[1] == 0) | |
661 | path = ""; | |
e2243057 | 662 | |
55d5520a | 663 | return path; |
e2243057 RS |
664 | } |
665 | ||
252b5132 RH |
666 | /* We need to find any explicitly given emulation in order to initialize the |
667 | state that's needed by the lex&yacc argument parser (parse_args). */ | |
668 | ||
669 | static char * | |
1579bae1 | 670 | get_emulation (int argc, char **argv) |
252b5132 RH |
671 | { |
672 | char *emulation; | |
673 | int i; | |
674 | ||
675 | emulation = getenv (EMULATION_ENVIRON); | |
676 | if (emulation == NULL) | |
677 | emulation = DEFAULT_EMULATION; | |
678 | ||
679 | for (i = 1; i < argc; i++) | |
680 | { | |
0112cd26 | 681 | if (CONST_STRNEQ (argv[i], "-m")) |
252b5132 RH |
682 | { |
683 | if (argv[i][2] == '\0') | |
684 | { | |
685 | /* -m EMUL */ | |
686 | if (i < argc - 1) | |
687 | { | |
688 | emulation = argv[i + 1]; | |
689 | i++; | |
690 | } | |
691 | else | |
df5f2391 | 692 | einfo (_("%F%P: missing argument to -m\n")); |
252b5132 RH |
693 | } |
694 | else if (strcmp (argv[i], "-mips1") == 0 | |
695 | || strcmp (argv[i], "-mips2") == 0 | |
696 | || strcmp (argv[i], "-mips3") == 0 | |
d1cf510e | 697 | || strcmp (argv[i], "-mips4") == 0 |
6f33421c CD |
698 | || strcmp (argv[i], "-mips5") == 0 |
699 | || strcmp (argv[i], "-mips32") == 0 | |
700 | || strcmp (argv[i], "-mips32r2") == 0 | |
7361da2c | 701 | || strcmp (argv[i], "-mips32r6") == 0 |
5f74bc13 | 702 | || strcmp (argv[i], "-mips64") == 0 |
7361da2c AB |
703 | || strcmp (argv[i], "-mips64r2") == 0 |
704 | || strcmp (argv[i], "-mips64r6") == 0) | |
252b5132 | 705 | { |
31d677f9 | 706 | /* FIXME: The arguments -mips1, -mips2, -mips3, etc. are |
252b5132 RH |
707 | passed to the linker by some MIPS compilers. They |
708 | generally tell the linker to use a slightly different | |
709 | library path. Perhaps someday these should be | |
710 | implemented as emulations; until then, we just ignore | |
711 | the arguments and hope that nobody ever creates | |
712 | emulations named ips1, ips2 or ips3. */ | |
713 | } | |
714 | else if (strcmp (argv[i], "-m486") == 0) | |
715 | { | |
716 | /* FIXME: The argument -m486 is passed to the linker on | |
717 | some Linux systems. Hope that nobody creates an | |
718 | emulation named 486. */ | |
719 | } | |
720 | else | |
721 | { | |
722 | /* -mEMUL */ | |
723 | emulation = &argv[i][2]; | |
724 | } | |
725 | } | |
726 | } | |
727 | ||
728 | return emulation; | |
729 | } | |
730 | ||
252b5132 | 731 | void |
1579bae1 | 732 | add_ysym (const char *name) |
252b5132 | 733 | { |
1579bae1 | 734 | if (link_info.notice_hash == NULL) |
252b5132 | 735 | { |
0aa7f586 AM |
736 | link_info.notice_hash |
737 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
738 | if (!bfd_hash_table_init_n (link_info.notice_hash, |
739 | bfd_hash_newfunc, | |
740 | sizeof (struct bfd_hash_entry), | |
741 | 61)) | |
df5f2391 | 742 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
6d5e62f8 | 743 | } |
252b5132 | 744 | |
1579bae1 | 745 | if (bfd_hash_lookup (link_info.notice_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 746 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
747 | } |
748 | ||
0e86e20e AM |
749 | void |
750 | add_ignoresym (struct bfd_link_info *info, const char *name) | |
751 | { | |
752 | if (info->ignore_hash == NULL) | |
753 | { | |
754 | info->ignore_hash = xmalloc (sizeof (struct bfd_hash_table)); | |
0aa7f586 AM |
755 | if (!bfd_hash_table_init_n (info->ignore_hash, |
756 | bfd_hash_newfunc, | |
757 | sizeof (struct bfd_hash_entry), | |
758 | 61)) | |
df5f2391 | 759 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
0e86e20e AM |
760 | } |
761 | ||
762 | if (bfd_hash_lookup (info->ignore_hash, name, TRUE, TRUE) == NULL) | |
df5f2391 | 763 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
0e86e20e AM |
764 | } |
765 | ||
252b5132 RH |
766 | /* Record a symbol to be wrapped, from the --wrap option. */ |
767 | ||
768 | void | |
1579bae1 | 769 | add_wrap (const char *name) |
252b5132 RH |
770 | { |
771 | if (link_info.wrap_hash == NULL) | |
772 | { | |
0aa7f586 AM |
773 | link_info.wrap_hash |
774 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
775 | if (!bfd_hash_table_init_n (link_info.wrap_hash, |
776 | bfd_hash_newfunc, | |
777 | sizeof (struct bfd_hash_entry), | |
778 | 61)) | |
df5f2391 | 779 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 | 780 | } |
0125cdf2 | 781 | |
b34976b6 | 782 | if (bfd_hash_lookup (link_info.wrap_hash, name, TRUE, TRUE) == NULL) |
df5f2391 | 783 | einfo (_("%F%P: bfd_hash_lookup failed: %E\n")); |
252b5132 RH |
784 | } |
785 | ||
786 | /* Handle the -retain-symbols-file option. */ | |
787 | ||
788 | void | |
1579bae1 | 789 | add_keepsyms_file (const char *filename) |
252b5132 RH |
790 | { |
791 | FILE *file; | |
792 | char *buf; | |
793 | size_t bufsize; | |
794 | int c; | |
795 | ||
796 | if (link_info.strip == strip_some) | |
797 | einfo (_("%X%P: error: duplicate retain-symbols-file\n")); | |
798 | ||
799 | file = fopen (filename, "r"); | |
1579bae1 | 800 | if (file == NULL) |
252b5132 RH |
801 | { |
802 | bfd_set_error (bfd_error_system_call); | |
803 | einfo ("%X%P: %s: %E\n", filename); | |
804 | return; | |
805 | } | |
806 | ||
1e9cc1c2 NC |
807 | link_info.keep_hash = (struct bfd_hash_table *) |
808 | xmalloc (sizeof (struct bfd_hash_table)); | |
66eb6687 AM |
809 | if (!bfd_hash_table_init (link_info.keep_hash, bfd_hash_newfunc, |
810 | sizeof (struct bfd_hash_entry))) | |
df5f2391 | 811 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); |
252b5132 RH |
812 | |
813 | bufsize = 100; | |
1e9cc1c2 | 814 | buf = (char *) xmalloc (bufsize); |
252b5132 RH |
815 | |
816 | c = getc (file); | |
817 | while (c != EOF) | |
818 | { | |
3882b010 | 819 | while (ISSPACE (c)) |
252b5132 RH |
820 | c = getc (file); |
821 | ||
822 | if (c != EOF) | |
823 | { | |
824 | size_t len = 0; | |
825 | ||
0aa7f586 | 826 | while (!ISSPACE (c) && c != EOF) |
252b5132 RH |
827 | { |
828 | buf[len] = c; | |
829 | ++len; | |
830 | if (len >= bufsize) | |
831 | { | |
832 | bufsize *= 2; | |
1e9cc1c2 | 833 | buf = (char *) xrealloc (buf, bufsize); |
252b5132 RH |
834 | } |
835 | c = getc (file); | |
836 | } | |
837 | ||
838 | buf[len] = '\0'; | |
839 | ||
1579bae1 | 840 | if (bfd_hash_lookup (link_info.keep_hash, buf, TRUE, TRUE) == NULL) |
df5f2391 | 841 | einfo (_("%F%P: bfd_hash_lookup for insertion failed: %E\n")); |
252b5132 RH |
842 | } |
843 | } | |
844 | ||
845 | if (link_info.strip != strip_none) | |
846 | einfo (_("%P: `-retain-symbols-file' overrides `-s' and `-S'\n")); | |
847 | ||
5ed6aba4 | 848 | free (buf); |
252b5132 | 849 | link_info.strip = strip_some; |
d9313f4f | 850 | fclose (file); |
252b5132 RH |
851 | } |
852 | \f | |
853 | /* Callbacks from the BFD linker routines. */ | |
854 | ||
855 | /* This is called when BFD has decided to include an archive member in | |
856 | a link. */ | |
857 | ||
b34976b6 | 858 | static bfd_boolean |
e1fffbe6 | 859 | add_archive_element (struct bfd_link_info *info, |
1579bae1 | 860 | bfd *abfd, |
5d3236ee DK |
861 | const char *name, |
862 | bfd **subsbfd ATTRIBUTE_UNUSED) | |
252b5132 RH |
863 | { |
864 | lang_input_statement_type *input; | |
1fa4ec6a | 865 | lang_input_statement_type *parent; |
5d3236ee | 866 | lang_input_statement_type orig_input; |
252b5132 | 867 | |
1e9cc1c2 NC |
868 | input = (lang_input_statement_type *) |
869 | xcalloc (1, sizeof (lang_input_statement_type)); | |
fb47deda | 870 | input->header.type = lang_input_statement_enum; |
607b4833 AM |
871 | input->filename = bfd_get_filename (abfd); |
872 | input->local_sym_name = bfd_get_filename (abfd); | |
252b5132 | 873 | input->the_bfd = abfd; |
252b5132 | 874 | |
5d3236ee DK |
875 | /* Save the original data for trace files/tries below, as plugins |
876 | (if enabled) may possibly alter it to point to a replacement | |
877 | BFD, but we still want to output the original BFD filename. */ | |
878 | orig_input = *input; | |
0381901e | 879 | #if BFD_SUPPORTS_PLUGINS |
b95a0a31 | 880 | if (link_info.lto_plugin_active) |
5d3236ee DK |
881 | { |
882 | /* We must offer this archive member to the plugins to claim. */ | |
35a1e5f3 L |
883 | plugin_maybe_claim (input); |
884 | if (input->flags.claimed) | |
5d3236ee | 885 | { |
b95a0a31 L |
886 | if (no_more_claiming) |
887 | { | |
888 | /* Don't claim new IR symbols after all IR symbols have | |
889 | been claimed. */ | |
5c87f94b | 890 | if (verbose) |
6e0c75f7 | 891 | info_msg ("%pI: no new IR symbols to claim\n", |
b95a0a31 L |
892 | &orig_input); |
893 | input->flags.claimed = 0; | |
894 | return FALSE; | |
895 | } | |
35a1e5f3 L |
896 | input->flags.claim_archive = TRUE; |
897 | *subsbfd = input->the_bfd; | |
5d3236ee DK |
898 | } |
899 | } | |
0381901e | 900 | #endif /* BFD_SUPPORTS_PLUGINS */ |
5d3236ee | 901 | |
9221725d AM |
902 | if (link_info.input_bfds_tail == &input->the_bfd->link.next |
903 | || input->the_bfd->link.next != NULL) | |
904 | { | |
905 | /* We have already loaded this element, and are attempting to | |
906 | load it again. This can happen when the archive map doesn't | |
907 | match actual symbols defined by the element. */ | |
908 | free (input); | |
909 | bfd_set_error (bfd_error_malformed_archive); | |
910 | return FALSE; | |
911 | } | |
912 | ||
913 | /* Set the file_chain pointer of archives to the last element loaded | |
914 | from the archive. See ldlang.c:find_rescan_insertion. */ | |
915 | parent = bfd_usrdata (abfd->my_archive); | |
916 | if (parent != NULL && !parent->flags.reload) | |
917 | parent->next = input; | |
918 | ||
252b5132 RH |
919 | ldlang_add_file (input); |
920 | ||
1579bae1 | 921 | if (config.map_file != NULL) |
252b5132 | 922 | { |
b34976b6 | 923 | static bfd_boolean header_printed; |
252b5132 RH |
924 | struct bfd_link_hash_entry *h; |
925 | bfd *from; | |
926 | int len; | |
927 | ||
e1fffbe6 | 928 | h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE); |
aa654ee8 AM |
929 | if (h == NULL |
930 | && info->pei386_auto_import | |
931 | && CONST_STRNEQ (name, "__imp_")) | |
932 | h = bfd_link_hash_lookup (info->hash, name + 6, FALSE, FALSE, TRUE); | |
252b5132 RH |
933 | |
934 | if (h == NULL) | |
935 | from = NULL; | |
936 | else | |
937 | { | |
938 | switch (h->type) | |
939 | { | |
940 | default: | |
941 | from = NULL; | |
942 | break; | |
943 | ||
944 | case bfd_link_hash_defined: | |
945 | case bfd_link_hash_defweak: | |
946 | from = h->u.def.section->owner; | |
947 | break; | |
948 | ||
949 | case bfd_link_hash_undefined: | |
950 | case bfd_link_hash_undefweak: | |
951 | from = h->u.undef.abfd; | |
952 | break; | |
953 | ||
954 | case bfd_link_hash_common: | |
955 | from = h->u.c.p->section->owner; | |
956 | break; | |
957 | } | |
958 | } | |
959 | ||
0aa7f586 | 960 | if (!header_printed) |
252b5132 | 961 | { |
1273da04 | 962 | minfo (_("Archive member included to satisfy reference by file (symbol)\n\n")); |
b34976b6 | 963 | header_printed = TRUE; |
252b5132 RH |
964 | } |
965 | ||
3860d2b4 AM |
966 | if (abfd->my_archive == NULL |
967 | || bfd_is_thin_archive (abfd->my_archive)) | |
252b5132 RH |
968 | { |
969 | minfo ("%s", bfd_get_filename (abfd)); | |
970 | len = strlen (bfd_get_filename (abfd)); | |
971 | } | |
972 | else | |
973 | { | |
3860d2b4 | 974 | minfo ("%s(%s)", bfd_get_filename (abfd->my_archive), |
252b5132 | 975 | bfd_get_filename (abfd)); |
3860d2b4 | 976 | len = (strlen (bfd_get_filename (abfd->my_archive)) |
252b5132 RH |
977 | + strlen (bfd_get_filename (abfd)) |
978 | + 2); | |
979 | } | |
980 | ||
981 | if (len >= 29) | |
982 | { | |
983 | print_nl (); | |
984 | len = 0; | |
985 | } | |
986 | while (len < 30) | |
987 | { | |
988 | print_space (); | |
989 | ++len; | |
990 | } | |
991 | ||
992 | if (from != NULL) | |
871b3ab2 | 993 | minfo ("%pB ", from); |
252b5132 | 994 | if (h != NULL) |
c1c8c1ef | 995 | minfo ("(%pT)\n", h->root.string); |
252b5132 RH |
996 | else |
997 | minfo ("(%s)\n", name); | |
998 | } | |
999 | ||
727a29ba AM |
1000 | if (verbose |
1001 | || trace_files > 1 | |
1002 | || (trace_files && bfd_is_thin_archive (orig_input.the_bfd->my_archive))) | |
c1c8c1ef | 1003 | info_msg ("%pI\n", &orig_input); |
b34976b6 | 1004 | return TRUE; |
252b5132 RH |
1005 | } |
1006 | ||
1007 | /* This is called when BFD has discovered a symbol which is defined | |
1008 | multiple times. */ | |
1009 | ||
1a72702b | 1010 | static void |
24f58f47 AM |
1011 | multiple_definition (struct bfd_link_info *info, |
1012 | struct bfd_link_hash_entry *h, | |
1579bae1 AM |
1013 | bfd *nbfd, |
1014 | asection *nsec, | |
1015 | bfd_vma nval) | |
252b5132 | 1016 | { |
24f58f47 AM |
1017 | const char *name; |
1018 | bfd *obfd; | |
1019 | asection *osec; | |
1020 | bfd_vma oval; | |
1021 | ||
1022 | if (info->allow_multiple_definition) | |
1a72702b | 1023 | return; |
24f58f47 AM |
1024 | |
1025 | switch (h->type) | |
1026 | { | |
1027 | case bfd_link_hash_defined: | |
1028 | osec = h->u.def.section; | |
1029 | oval = h->u.def.value; | |
1030 | obfd = h->u.def.section->owner; | |
1031 | break; | |
1032 | case bfd_link_hash_indirect: | |
1033 | osec = bfd_ind_section_ptr; | |
1034 | oval = 0; | |
1035 | obfd = NULL; | |
1036 | break; | |
1037 | default: | |
1038 | abort (); | |
1039 | } | |
1040 | ||
1041 | /* Ignore a redefinition of an absolute symbol to the | |
1042 | same value; it's harmless. */ | |
1043 | if (h->type == bfd_link_hash_defined | |
1044 | && bfd_is_abs_section (osec) | |
1045 | && bfd_is_abs_section (nsec) | |
1046 | && nval == oval) | |
1a72702b | 1047 | return; |
24f58f47 | 1048 | |
252b5132 RH |
1049 | /* If either section has the output_section field set to |
1050 | bfd_abs_section_ptr, it means that the section is being | |
1051 | discarded, and this is not really a multiple definition at all. | |
9e2278f5 AM |
1052 | FIXME: It would be cleaner to somehow ignore symbols defined in |
1053 | sections which are being discarded. */ | |
3f0a5f17 ME |
1054 | if (!info->prohibit_multiple_definition_absolute |
1055 | && ((osec->output_section != NULL | |
1056 | && ! bfd_is_abs_section (osec) | |
1057 | && bfd_is_abs_section (osec->output_section)) | |
1058 | || (nsec->output_section != NULL | |
1059 | && !bfd_is_abs_section (nsec) | |
1060 | && bfd_is_abs_section (nsec->output_section)))) | |
1a72702b | 1061 | return; |
252b5132 | 1062 | |
24f58f47 AM |
1063 | name = h->root.string; |
1064 | if (nbfd == NULL) | |
1065 | { | |
1066 | nbfd = obfd; | |
1067 | nsec = osec; | |
1068 | nval = oval; | |
1069 | obfd = NULL; | |
1070 | } | |
df5f2391 | 1071 | einfo (_("%X%P: %C: multiple definition of `%pT'"), |
252b5132 | 1072 | nbfd, nsec, nval, name); |
1579bae1 | 1073 | if (obfd != NULL) |
df5f2391 AM |
1074 | einfo (_("; %D: first defined here"), obfd, osec, oval); |
1075 | einfo ("\n"); | |
9b14b192 | 1076 | |
13761a11 | 1077 | if (RELAXATION_ENABLED_BY_USER) |
9b14b192 | 1078 | { |
df5f2391 | 1079 | einfo (_("%P: disabling relaxation; it will not work with multiple definitions\n")); |
13761a11 | 1080 | DISABLE_RELAXATION; |
9b14b192 | 1081 | } |
252b5132 RH |
1082 | } |
1083 | ||
1084 | /* This is called when there is a definition of a common symbol, or | |
1085 | when a common symbol is found for a symbol that is already defined, | |
1086 | or when two common symbols are found. We only do something if | |
1087 | -warn-common was used. */ | |
1088 | ||
1a72702b | 1089 | static void |
1579bae1 | 1090 | multiple_common (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
24f58f47 | 1091 | struct bfd_link_hash_entry *h, |
1579bae1 AM |
1092 | bfd *nbfd, |
1093 | enum bfd_link_hash_type ntype, | |
1094 | bfd_vma nsize) | |
252b5132 | 1095 | { |
24f58f47 AM |
1096 | const char *name; |
1097 | bfd *obfd; | |
1098 | enum bfd_link_hash_type otype; | |
1099 | bfd_vma osize; | |
1100 | ||
1101 | if (!config.warn_common) | |
1a72702b | 1102 | return; |
252b5132 | 1103 | |
24f58f47 AM |
1104 | name = h->root.string; |
1105 | otype = h->type; | |
1106 | if (otype == bfd_link_hash_common) | |
1107 | { | |
1108 | obfd = h->u.c.p->section->owner; | |
1109 | osize = h->u.c.size; | |
1110 | } | |
1111 | else if (otype == bfd_link_hash_defined | |
1112 | || otype == bfd_link_hash_defweak) | |
1113 | { | |
1114 | obfd = h->u.def.section->owner; | |
1115 | osize = 0; | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | /* FIXME: It would nice if we could report the BFD which defined | |
1120 | an indirect symbol, but we don't have anywhere to store the | |
1121 | information. */ | |
1122 | obfd = NULL; | |
1123 | osize = 0; | |
1124 | } | |
1125 | ||
252b5132 RH |
1126 | if (ntype == bfd_link_hash_defined |
1127 | || ntype == bfd_link_hash_defweak | |
1128 | || ntype == bfd_link_hash_indirect) | |
1129 | { | |
1130 | ASSERT (otype == bfd_link_hash_common); | |
252b5132 | 1131 | if (obfd != NULL) |
df5f2391 AM |
1132 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common" |
1133 | " from %pB\n"), | |
1134 | nbfd, name, obfd); | |
1135 | else | |
1136 | einfo (_("%P: %pB: warning: definition of `%pT' overriding common\n"), | |
1137 | nbfd, name); | |
252b5132 RH |
1138 | } |
1139 | else if (otype == bfd_link_hash_defined | |
1140 | || otype == bfd_link_hash_defweak | |
1141 | || otype == bfd_link_hash_indirect) | |
1142 | { | |
1143 | ASSERT (ntype == bfd_link_hash_common); | |
252b5132 | 1144 | if (obfd != NULL) |
df5f2391 AM |
1145 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition" |
1146 | " from %pB\n"), | |
1147 | nbfd, name, obfd); | |
1148 | else | |
1149 | einfo (_("%P: %pB: warning: common of `%pT' overridden by definition\n"), | |
1150 | nbfd, name); | |
252b5132 RH |
1151 | } |
1152 | else | |
1153 | { | |
1154 | ASSERT (otype == bfd_link_hash_common && ntype == bfd_link_hash_common); | |
1155 | if (osize > nsize) | |
1156 | { | |
252b5132 | 1157 | if (obfd != NULL) |
df5f2391 AM |
1158 | einfo (_("%P: %pB: warning: common of `%pT' overridden" |
1159 | " by larger common from %pB\n"), | |
1160 | nbfd, name, obfd); | |
1161 | else | |
1162 | einfo (_("%P: %pB: warning: common of `%pT' overridden" | |
1163 | " by larger common\n"), | |
1164 | nbfd, name); | |
252b5132 RH |
1165 | } |
1166 | else if (nsize > osize) | |
1167 | { | |
252b5132 | 1168 | if (obfd != NULL) |
df5f2391 AM |
1169 | einfo (_("%P: %pB: warning: common of `%pT' overriding" |
1170 | " smaller common from %pB\n"), | |
1171 | nbfd, name, obfd); | |
1172 | else | |
1173 | einfo (_("%P: %pB: warning: common of `%pT' overriding" | |
1174 | " smaller common\n"), | |
1175 | nbfd, name); | |
252b5132 RH |
1176 | } |
1177 | else | |
1178 | { | |
252b5132 | 1179 | if (obfd != NULL) |
df5f2391 AM |
1180 | einfo (_("%P: %pB and %pB: warning: multiple common of `%pT'\n"), |
1181 | nbfd, obfd, name); | |
1182 | else | |
1183 | einfo (_("%P: %pB: warning: multiple common of `%pT'\n"), | |
1184 | nbfd, name); | |
252b5132 RH |
1185 | } |
1186 | } | |
252b5132 RH |
1187 | } |
1188 | ||
1189 | /* This is called when BFD has discovered a set element. H is the | |
1190 | entry in the linker hash table for the set. SECTION and VALUE | |
1191 | represent a value which should be added to the set. */ | |
1192 | ||
1a72702b | 1193 | static void |
1579bae1 AM |
1194 | add_to_set (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1195 | struct bfd_link_hash_entry *h, | |
1196 | bfd_reloc_code_real_type reloc, | |
1197 | bfd *abfd, | |
1198 | asection *section, | |
1199 | bfd_vma value) | |
252b5132 RH |
1200 | { |
1201 | if (config.warn_constructors) | |
1202 | einfo (_("%P: warning: global constructor %s used\n"), | |
1203 | h->root.string); | |
1204 | ||
0aa7f586 | 1205 | if (!config.build_constructors) |
1a72702b | 1206 | return; |
252b5132 | 1207 | |
1579bae1 | 1208 | ldctor_add_set_entry (h, reloc, NULL, section, value); |
252b5132 RH |
1209 | |
1210 | if (h->type == bfd_link_hash_new) | |
1211 | { | |
1212 | h->type = bfd_link_hash_undefined; | |
1213 | h->u.undef.abfd = abfd; | |
1214 | /* We don't call bfd_link_add_undef to add this to the list of | |
1215 | undefined symbols because we are going to define it | |
1216 | ourselves. */ | |
1217 | } | |
252b5132 RH |
1218 | } |
1219 | ||
1220 | /* This is called when BFD has discovered a constructor. This is only | |
1221 | called for some object file formats--those which do not handle | |
1222 | constructors in some more clever fashion. This is similar to | |
1223 | adding an element to a set, but less general. */ | |
1224 | ||
1a72702b | 1225 | static void |
1579bae1 AM |
1226 | constructor_callback (struct bfd_link_info *info, |
1227 | bfd_boolean constructor, | |
1228 | const char *name, | |
1229 | bfd *abfd, | |
1230 | asection *section, | |
1231 | bfd_vma value) | |
252b5132 RH |
1232 | { |
1233 | char *s; | |
1234 | struct bfd_link_hash_entry *h; | |
1235 | char set_name[1 + sizeof "__CTOR_LIST__"]; | |
1236 | ||
1237 | if (config.warn_constructors) | |
1238 | einfo (_("%P: warning: global constructor %s used\n"), name); | |
1239 | ||
0aa7f586 | 1240 | if (!config.build_constructors) |
1a72702b | 1241 | return; |
252b5132 RH |
1242 | |
1243 | /* Ensure that BFD_RELOC_CTOR exists now, so that we can give a | |
1244 | useful error message. */ | |
0e86e20e | 1245 | if (bfd_reloc_type_lookup (info->output_bfd, BFD_RELOC_CTOR) == NULL |
0e1862bb | 1246 | && (bfd_link_relocatable (info) |
252b5132 | 1247 | || bfd_reloc_type_lookup (abfd, BFD_RELOC_CTOR) == NULL)) |
df5f2391 | 1248 | einfo (_("%F%P: BFD backend error: BFD_RELOC_CTOR unsupported\n")); |
252b5132 RH |
1249 | |
1250 | s = set_name; | |
1251 | if (bfd_get_symbol_leading_char (abfd) != '\0') | |
1252 | *s++ = bfd_get_symbol_leading_char (abfd); | |
1253 | if (constructor) | |
1254 | strcpy (s, "__CTOR_LIST__"); | |
1255 | else | |
1256 | strcpy (s, "__DTOR_LIST__"); | |
1257 | ||
b34976b6 | 1258 | h = bfd_link_hash_lookup (info->hash, set_name, TRUE, TRUE, TRUE); |
252b5132 | 1259 | if (h == (struct bfd_link_hash_entry *) NULL) |
df5f2391 | 1260 | einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); |
252b5132 RH |
1261 | if (h->type == bfd_link_hash_new) |
1262 | { | |
1263 | h->type = bfd_link_hash_undefined; | |
1264 | h->u.undef.abfd = abfd; | |
1265 | /* We don't call bfd_link_add_undef to add this to the list of | |
1266 | undefined symbols because we are going to define it | |
1267 | ourselves. */ | |
1268 | } | |
1269 | ||
1270 | ldctor_add_set_entry (h, BFD_RELOC_CTOR, name, section, value); | |
252b5132 RH |
1271 | } |
1272 | ||
1273 | /* A structure used by warning_callback to pass information through | |
1274 | bfd_map_over_sections. */ | |
1275 | ||
0125cdf2 NC |
1276 | struct warning_callback_info |
1277 | { | |
b34976b6 | 1278 | bfd_boolean found; |
252b5132 RH |
1279 | const char *warning; |
1280 | const char *symbol; | |
1281 | asymbol **asymbols; | |
1282 | }; | |
1283 | ||
4c6d802e L |
1284 | /* Look through the relocs to see if we can find a plausible address |
1285 | for SYMBOL in ABFD. Return TRUE if found. Otherwise return FALSE. */ | |
1286 | ||
1287 | static bfd_boolean | |
1288 | symbol_warning (const char *warning, const char *symbol, bfd *abfd) | |
1289 | { | |
1290 | struct warning_callback_info cinfo; | |
1291 | ||
1292 | if (!bfd_generic_link_read_symbols (abfd)) | |
df5f2391 | 1293 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), abfd); |
4c6d802e L |
1294 | |
1295 | cinfo.found = FALSE; | |
1296 | cinfo.warning = warning; | |
1297 | cinfo.symbol = symbol; | |
1298 | cinfo.asymbols = bfd_get_outsymbols (abfd); | |
1299 | bfd_map_over_sections (abfd, warning_find_reloc, &cinfo); | |
1300 | return cinfo.found; | |
1301 | } | |
1302 | ||
252b5132 RH |
1303 | /* This is called when there is a reference to a warning symbol. */ |
1304 | ||
1a72702b | 1305 | static void |
1579bae1 AM |
1306 | warning_callback (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1307 | const char *warning, | |
1308 | const char *symbol, | |
1309 | bfd *abfd, | |
1310 | asection *section, | |
1311 | bfd_vma address) | |
252b5132 RH |
1312 | { |
1313 | /* This is a hack to support warn_multiple_gp. FIXME: This should | |
1314 | have a cleaner interface, but what? */ | |
0aa7f586 | 1315 | if (!config.warn_multiple_gp |
252b5132 | 1316 | && strcmp (warning, "using multiple gp values") == 0) |
1a72702b | 1317 | return; |
252b5132 RH |
1318 | |
1319 | if (section != NULL) | |
df5f2391 | 1320 | einfo ("%P: %C: %s%s\n", abfd, section, address, _("warning: "), warning); |
252b5132 | 1321 | else if (abfd == NULL) |
300475fe | 1322 | einfo ("%P: %s%s\n", _("warning: "), warning); |
252b5132 | 1323 | else if (symbol == NULL) |
df5f2391 | 1324 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
0aa7f586 | 1325 | else if (!symbol_warning (warning, symbol, abfd)) |
252b5132 | 1326 | { |
4c6d802e L |
1327 | bfd *b; |
1328 | /* Search all input files for a reference to SYMBOL. */ | |
c72f2fb2 | 1329 | for (b = info->input_bfds; b; b = b->link.next) |
4c6d802e | 1330 | if (b != abfd && symbol_warning (warning, symbol, b)) |
1a72702b | 1331 | return; |
df5f2391 | 1332 | einfo ("%P: %pB: %s%s\n", abfd, _("warning: "), warning); |
252b5132 | 1333 | } |
252b5132 RH |
1334 | } |
1335 | ||
1336 | /* This is called by warning_callback for each section. It checks the | |
1337 | relocs of the section to see if it can find a reference to the | |
1338 | symbol which triggered the warning. If it can, it uses the reloc | |
1339 | to give an error message with a file and line number. */ | |
1340 | ||
1341 | static void | |
1579bae1 | 1342 | warning_find_reloc (bfd *abfd, asection *sec, void *iarg) |
252b5132 | 1343 | { |
1e9cc1c2 | 1344 | struct warning_callback_info *info = (struct warning_callback_info *) iarg; |
252b5132 RH |
1345 | long relsize; |
1346 | arelent **relpp; | |
1347 | long relcount; | |
1348 | arelent **p, **pend; | |
1349 | ||
1350 | if (info->found) | |
1351 | return; | |
1352 | ||
1353 | relsize = bfd_get_reloc_upper_bound (abfd, sec); | |
1354 | if (relsize < 0) | |
df5f2391 | 1355 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1356 | if (relsize == 0) |
1357 | return; | |
1358 | ||
1e9cc1c2 | 1359 | relpp = (arelent **) xmalloc (relsize); |
252b5132 RH |
1360 | relcount = bfd_canonicalize_reloc (abfd, sec, relpp, info->asymbols); |
1361 | if (relcount < 0) | |
df5f2391 | 1362 | einfo (_("%F%P: %pB: could not read relocs: %E\n"), abfd); |
252b5132 RH |
1363 | |
1364 | p = relpp; | |
1365 | pend = p + relcount; | |
1366 | for (; p < pend && *p != NULL; p++) | |
1367 | { | |
1368 | arelent *q = *p; | |
1369 | ||
1370 | if (q->sym_ptr_ptr != NULL | |
1371 | && *q->sym_ptr_ptr != NULL | |
1372 | && strcmp (bfd_asymbol_name (*q->sym_ptr_ptr), info->symbol) == 0) | |
1373 | { | |
1374 | /* We found a reloc for the symbol we are looking for. */ | |
df5f2391 | 1375 | einfo ("%P: %C: %s%s\n", abfd, sec, q->address, _("warning: "), |
300475fe | 1376 | info->warning); |
b34976b6 | 1377 | info->found = TRUE; |
252b5132 RH |
1378 | break; |
1379 | } | |
1380 | } | |
1381 | ||
1382 | free (relpp); | |
1383 | } | |
1384 | ||
1385 | /* This is called when an undefined symbol is found. */ | |
1386 | ||
1a72702b | 1387 | static void |
0e86e20e | 1388 | undefined_symbol (struct bfd_link_info *info, |
1579bae1 AM |
1389 | const char *name, |
1390 | bfd *abfd, | |
1391 | asection *section, | |
1392 | bfd_vma address, | |
0b28295d | 1393 | bfd_boolean error) |
252b5132 RH |
1394 | { |
1395 | static char *error_name; | |
1396 | static unsigned int error_count; | |
1397 | ||
1398 | #define MAX_ERRORS_IN_A_ROW 5 | |
1399 | ||
0e86e20e AM |
1400 | if (info->ignore_hash != NULL |
1401 | && bfd_hash_lookup (info->ignore_hash, name, FALSE, FALSE) != NULL) | |
1a72702b | 1402 | return; |
0e86e20e | 1403 | |
252b5132 RH |
1404 | if (config.warn_once) |
1405 | { | |
252b5132 | 1406 | /* Only warn once about a particular undefined symbol. */ |
0e86e20e | 1407 | add_ignoresym (info, name); |
252b5132 RH |
1408 | } |
1409 | ||
1410 | /* We never print more than a reasonable number of errors in a row | |
1411 | for a single symbol. */ | |
1579bae1 | 1412 | if (error_name != NULL |
252b5132 RH |
1413 | && strcmp (name, error_name) == 0) |
1414 | ++error_count; | |
1415 | else | |
1416 | { | |
1417 | error_count = 0; | |
5e2ab612 | 1418 | free (error_name); |
d1b2b2dc | 1419 | error_name = xstrdup (name); |
252b5132 RH |
1420 | } |
1421 | ||
1422 | if (section != NULL) | |
1423 | { | |
1424 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1425 | { |
0b28295d | 1426 | if (error) |
df5f2391 | 1427 | einfo (_("%X%P: %C: undefined reference to `%pT'\n"), |
0b28295d ILT |
1428 | abfd, section, address, name); |
1429 | else | |
df5f2391 | 1430 | einfo (_("%P: %C: warning: undefined reference to `%pT'\n"), |
0b28295d | 1431 | abfd, section, address, name); |
b6f29aaa | 1432 | } |
252b5132 | 1433 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1434 | { |
1435 | if (error) | |
df5f2391 | 1436 | einfo (_("%X%P: %D: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1437 | abfd, section, address, name); |
1438 | else | |
df5f2391 | 1439 | einfo (_("%P: %D: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1440 | abfd, section, address, name); |
1441 | } | |
1442 | else if (error) | |
1443 | einfo ("%X"); | |
252b5132 RH |
1444 | } |
1445 | else | |
1446 | { | |
1447 | if (error_count < MAX_ERRORS_IN_A_ROW) | |
b6f29aaa | 1448 | { |
0b28295d | 1449 | if (error) |
df5f2391 | 1450 | einfo (_("%X%P: %pB: undefined reference to `%pT'\n"), |
0b28295d ILT |
1451 | abfd, name); |
1452 | else | |
df5f2391 | 1453 | einfo (_("%P: %pB: warning: undefined reference to `%pT'\n"), |
0b28295d | 1454 | abfd, name); |
b6f29aaa | 1455 | } |
252b5132 | 1456 | else if (error_count == MAX_ERRORS_IN_A_ROW) |
0b28295d ILT |
1457 | { |
1458 | if (error) | |
df5f2391 | 1459 | einfo (_("%X%P: %pB: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1460 | abfd, name); |
1461 | else | |
df5f2391 | 1462 | einfo (_("%P: %pB: warning: more undefined references to `%pT' follow\n"), |
0b28295d ILT |
1463 | abfd, name); |
1464 | } | |
1465 | else if (error) | |
1466 | einfo ("%X"); | |
252b5132 | 1467 | } |
252b5132 RH |
1468 | } |
1469 | ||
8aae64e6 AO |
1470 | /* Counter to limit the number of relocation overflow error messages |
1471 | to print. Errors are printed as it is decremented. When it's | |
1472 | called and the counter is zero, a final message is printed | |
1473 | indicating more relocations were omitted. When it gets to -1, no | |
1474 | such errors are printed. If it's initially set to a value less | |
1475 | than -1, all such errors will be printed (--verbose does this). */ | |
1476 | ||
1477 | int overflow_cutoff_limit = 10; | |
1478 | ||
252b5132 RH |
1479 | /* This is called when a reloc overflows. */ |
1480 | ||
1a72702b | 1481 | static void |
0e86e20e | 1482 | reloc_overflow (struct bfd_link_info *info, |
dfeffb9f | 1483 | struct bfd_link_hash_entry *entry, |
1579bae1 AM |
1484 | const char *name, |
1485 | const char *reloc_name, | |
1486 | bfd_vma addend, | |
1487 | bfd *abfd, | |
1488 | asection *section, | |
1489 | bfd_vma address) | |
252b5132 | 1490 | { |
8aae64e6 | 1491 | if (overflow_cutoff_limit == -1) |
1a72702b | 1492 | return; |
8aae64e6 | 1493 | |
a5990ada | 1494 | einfo ("%X%H:", abfd, section, address); |
8aae64e6 AO |
1495 | |
1496 | if (overflow_cutoff_limit >= 0 | |
1497 | && overflow_cutoff_limit-- == 0) | |
1498 | { | |
1499 | einfo (_(" additional relocation overflows omitted from the output\n")); | |
1a72702b | 1500 | return; |
8aae64e6 AO |
1501 | } |
1502 | ||
dfeffb9f L |
1503 | if (entry) |
1504 | { | |
1505 | while (entry->type == bfd_link_hash_indirect | |
1506 | || entry->type == bfd_link_hash_warning) | |
1507 | entry = entry->u.i.link; | |
1508 | switch (entry->type) | |
1509 | { | |
1510 | case bfd_link_hash_undefined: | |
1511 | case bfd_link_hash_undefweak: | |
0aa7f586 | 1512 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1513 | "%s against undefined symbol `%pT'"), |
dfeffb9f L |
1514 | reloc_name, entry->root.string); |
1515 | break; | |
1516 | case bfd_link_hash_defined: | |
1517 | case bfd_link_hash_defweak: | |
0aa7f586 | 1518 | einfo (_(" relocation truncated to fit: " |
c1c8c1ef | 1519 | "%s against symbol `%pT' defined in %pA section in %pB"), |
dfeffb9f | 1520 | reloc_name, entry->root.string, |
a6e1b90f L |
1521 | entry->u.def.section, |
1522 | entry->u.def.section == bfd_abs_section_ptr | |
0e86e20e | 1523 | ? info->output_bfd : entry->u.def.section->owner); |
dfeffb9f L |
1524 | break; |
1525 | default: | |
1526 | abort (); | |
1527 | break; | |
1528 | } | |
1529 | } | |
1530 | else | |
c1c8c1ef | 1531 | einfo (_(" relocation truncated to fit: %s against `%pT'"), |
dfeffb9f | 1532 | reloc_name, name); |
252b5132 RH |
1533 | if (addend != 0) |
1534 | einfo ("+%v", addend); | |
1535 | einfo ("\n"); | |
252b5132 RH |
1536 | } |
1537 | ||
1538 | /* This is called when a dangerous relocation is made. */ | |
1539 | ||
1a72702b | 1540 | static void |
1579bae1 AM |
1541 | reloc_dangerous (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1542 | const char *message, | |
1543 | bfd *abfd, | |
1544 | asection *section, | |
1545 | bfd_vma address) | |
252b5132 | 1546 | { |
a5990ada | 1547 | einfo (_("%X%H: dangerous relocation: %s\n"), |
e1fffbe6 | 1548 | abfd, section, address, message); |
252b5132 RH |
1549 | } |
1550 | ||
1551 | /* This is called when a reloc is being generated attached to a symbol | |
1552 | that is not being output. */ | |
1553 | ||
1a72702b | 1554 | static void |
1579bae1 AM |
1555 | unattached_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1556 | const char *name, | |
1557 | bfd *abfd, | |
1558 | asection *section, | |
1559 | bfd_vma address) | |
252b5132 | 1560 | { |
a5990ada | 1561 | einfo (_("%X%H: reloc refers to symbol `%pT' which is not being output\n"), |
e1fffbe6 | 1562 | abfd, section, address, name); |
252b5132 RH |
1563 | } |
1564 | ||
1565 | /* This is called if link_info.notice_all is set, or when a symbol in | |
1566 | link_info.notice_hash is found. Symbols are put in notice_hash | |
5d3236ee DK |
1567 | using the -y option, while notice_all is set if the --cref option |
1568 | has been supplied, or if there are any NOCROSSREFS sections in the | |
1569 | linker script; and if plugins are active, since they need to monitor | |
1570 | all references from non-IR files. */ | |
252b5132 | 1571 | |
b34976b6 | 1572 | static bfd_boolean |
1579bae1 | 1573 | notice (struct bfd_link_info *info, |
35ed3f94 | 1574 | struct bfd_link_hash_entry *h, |
46135103 | 1575 | struct bfd_link_hash_entry *inh ATTRIBUTE_UNUSED, |
1579bae1 AM |
1576 | bfd *abfd, |
1577 | asection *section, | |
16d96b5b | 1578 | bfd_vma value, |
46135103 | 1579 | flagword flags ATTRIBUTE_UNUSED) |
252b5132 | 1580 | { |
35ed3f94 AM |
1581 | const char *name; |
1582 | ||
1583 | if (h == NULL) | |
5061a885 AM |
1584 | { |
1585 | if (command_line.cref || nocrossref_list != NULL) | |
1e9cc1c2 | 1586 | return handle_asneeded_cref (abfd, (enum notice_asneeded_action) value); |
5061a885 AM |
1587 | return TRUE; |
1588 | } | |
1589 | ||
35ed3f94 | 1590 | name = h->root.string; |
5d3236ee | 1591 | if (info->notice_hash != NULL |
9e2278f5 | 1592 | && bfd_hash_lookup (info->notice_hash, name, FALSE, FALSE) != NULL) |
252b5132 RH |
1593 | { |
1594 | if (bfd_is_und_section (section)) | |
df5f2391 | 1595 | einfo (_("%P: %pB: reference to %s\n"), abfd, name); |
252b5132 | 1596 | else |
df5f2391 | 1597 | einfo (_("%P: %pB: definition of %s\n"), abfd, name); |
252b5132 RH |
1598 | } |
1599 | ||
1600 | if (command_line.cref || nocrossref_list != NULL) | |
1601 | add_cref (name, abfd, section, value); | |
1602 | ||
b34976b6 | 1603 | return TRUE; |
252b5132 | 1604 | } |